When ATI/AMD presented new generation of graphics cards based on RV770 chip, first model was Radeon HD 4850. This model, despite few problems, became mega popular when it comes to HD 4XXX series of graphics cards that now consists out of so many models. Although it was first presented, Radeon HD 4850 was far from top-performance model. Nevertheless even today its sale rates are high because its main advantage was price. For relatively small amount of currency you will get GPU with 800 stream processors (Radeon HD 4850 512MB GDDR3) that is enough to run all new games…